Product Guide Product Guide

ALL NEW 20153 4

Patented

The roller type linear motion guide has the highest rigidity, load capacity, running accuracy and vibration damping properties of all guides. In the extra long unit that has the maximum slide unit length, load capacity and rigidity are improved and ultra high accuracy running performance is achieved.

[Track rail]

[Slide unit]

End seal

Side plate

Grease nipple

Retaining plate

Under seal

Cylindrical roller

Casing

LRXD (G,L) Size 85Linear Roller Way Super X

1 Super high load capacityThe Linear Roller Way Super X has a large contact area with the way and more cylindrical rollers with excellent load capacity, which allow

it to have a higher load rating.

LRXD (G,L) 85 Structure

Variation of LRX

Features

LRXD series is now available in a maximum rail width of 85mm

2 Super high rigidityThe rigidity of a linear motion rolling guide is a key property that needs to be considered when incorporating it into a machine or device.

The Linear Roller Way Super X utilizes cylindrical rollers that have smaller elastic deformation properties than steel balls, which equal higher

rigidity.

3 Allows accurate positioning with excellent frictional characteristicsThe Linear Roller Way Super X prevents skew of cylindrical rollers and achieves smooth motion by using a unique retaining method to

accurately guide the cylindrical roller ends with the retaining plate. There is little frictional resistance under preload and loaded conditions,

and cylindrical rollers have lower frictional characteristics compared to other linear motion rolling guides such as sliding guides or ball

types, which provides better response when micro-feeding and accurate positioning.

4 High running accuracyOptimal design based on analysis of re-circulation behavior of cylindrical roller circulation enables smooth and quiet motion. Because there

are many cylindrical rollers that can share the applied load, they work together to minimize minor vibrations during operation. The extra-long

unit is the best choice for applications that demand higher running accuracy.

1N=0.102kgf=0.2248lbs.1mm=0.03937inch

Flange type mounting from top / bottom

Block type mounting from top

Compact block type mounting from top

Short

Standard

Long

Extra long

Short

Standard

Long

Short

Standard

Long

Extra long

Slide unit shape Length of slide unit

Size

5520 2515 100Model

35 453012 65 85

LRXC

LRX

LRXG

LRXL

LRXDC

LRXD

LRXDG

LRXDL

LRXSC

LRXS

LRXSG

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Note(1) LRXC20, LRX20 and LRXG20 can only be mounted by the bolts from top. The models with the same dimensions allowing mounting from bottom are LRXHC20,

LRXH20 and LRXHG20.

Remark: For models indicated with ☆, the interchangeable specification is available.

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Product Guide Product Guide

ALL NEW 20155 6

Standard and maximum lengths of track rail Preload amount Accuracy class, tolerances, and allowable values

Identification numberItem

Standard length L(n)

Pitch of mounting holes F

E(1)

E standard dimension (2)

or higher

below

Maximum length

LRX85

Unit: mm

Static moment rating(3)

T0 TX TYN･m N･m N･m

Basic dynamic load rating (3)

C C0L1 L2 L3 N N

Mass (Ref.)

Slide unitkg

Basic static load rating (3)Identification

number

LRXD 85

LRXDG 85

LRXDL 85

Note (1) For track rail lengths, see Table 1.(2) JIS B 1176-equivalent hexagon socket head bolts.(3) Basic dynamic load rating (C), basic static load rating (C0), static moment

rating (T0, TX, TY) direction values are shown in the figure to the right.The upper values of TX and TY are for one slide unit and the lower values are for two slide units in close contact.

Remarks: 1 The grease nipple is JIS type 2.　　2 The grease nipple mounting screws are located in 3 places each on the left

and right side panels.

1 620 (9)1 980 (11)2 340 (13)2 700 (15)

180

90

23

113

2 880

Note (1) If not directed, E dimensions for both ends will be the same within the range of standard E dimensions. To change the dimensions, indicate the specified rail mounting hole positions /E of special specification.

(2) Female threads for bellows mounting (supplemental code: /J) are not supported.

LRXD L 85 C1 R1620 T1 P /D❶ ❹❷ ❺❸ ❻ ❼ ❽

Track rail

kg/m

mm

DimensionsExample of Identification Number

❶ Model

LRXD Block type mounting from top

❷ Length of slide unit

No Symbol

G

L

Standard

Long

Extra long

❸ Size

85

❹ Number of slide units (C○)

Indicates the number of slide units

assembled on one track rail.

❺ Length of track rail (R○)

Indicate the length of track rail in mm.

For standard and maximum lengths, see Table 1.

❽ Special specification

/A

/D

/E

/F

/HP

/I

/J

/MN

/Q

/V

/Y

/Z

Butt-jointing track rails

Opposite reference surfaces arrangement

Specified rail mounting hole positions

Caps for rail mounting holes

Half pitch mounting holes for track rail

Inspection sheet

Female threads for bellows

Without track rail mounting bolt

With C-Lube plate

Double end seals

Specified grease

Scraper

Remarks: See the Linear Motion Rolling Guide Series General Catalog CAT-1560 for information regarding special specifications.

❻ Preload amount

See Table 2 for details regarding preloading.

❼ Accuracy class

See Table 3 for accuracy classes.

Note (1)Remark

Indicates zero or minimal amount of preload.C0 indicates the basic static load rating.

Item

Preload type

Preload symbol

Preload amount

NOperating conditions

Medium preload T2

Standard (No symbol)

0.05C0

･ Medium vibration

0 (1) ･ Light and precise motion

Light preload 0.02C0

･ Almost no vibrationT1

･ Medium overhang load applied

･ Load is evenly balanced･ Light and precise motion

Heavy preload 0.08C0

･ Operates with vibration and/or impactsT3 ･ Overhang load applied

･ Heavy cutting

It means the size variation between slide units mounted on the same track rail.Note (1)

Length of track rail L mm

Par

alle

lism

μ

m

Class (Classification symbol)

Item

High

H Dimension tolerance ±0.020

N Dimension tolerance ±0.025

H Dimension variation (1) 0.007

N Dimension variation (1) 0.010

Parallelism of the slide unit C surface to A surface during operation

See Fig. 1.

Parallelism of the slide unit D surface to B surface during operation

See Fig. 1.

±0.040

±0.050

0.015

0.020

Precision

±0.010

±0.015

0.005

0.007

Super precision

±0.008

±0.010

0.003

0.003

Unit: mm　

(H) (P) (SP)

Ultra precision

(UP)

Parallelism in operation

Appended mounting bolt for

track rail (2)

E F

L

E

n (Pieces)

HH

C

A

BD

N

40

30

20

10

0

High (H)

Precision (P)

Super precision (SP)

Ultra precision (UP)

500 1000 1500 2000 2500 3000

Dimension of slide unit

19.9

25.5

34.1

323

395

494

140

200

280

232

304

403

440 000

542 000

674 000

753 000

985 000

1 300 000

38 900

50 800

67 300

29 500

50 000

87 000

29 500

50 000

87 000

163 000

257 000

422 000

163 000

257 000

422 000

36.7

Bolt size x ℓ

M24 x 70

1 N ≈ 0.102 kgf

C, C0 T

0T

XT

Y

Table 1

Table 2

Table 3

Fig. 1

8540.5

110

16

22

1666023 60

(175)

EL(1)

26.5

180E

30

67

39

(L1)

L3

L2

L2/2 L

2/2

(L1)

L3

L2

LRXD 85LRXDG85LRXDL85

9-M 20 x 306-M 20 x 30

(27.5) (27.5)Grease nipple

1N=0.102kgf=0.2248lbs.1mm=0.03937inch